2 * scp.c - Scp (Secure Copy) client for PuTTY.
3 * Joris van Rantwijk, Simon Tatham
5 * This is mainly based on ssh-1.2.26/scp.c by Timo Rinne & Tatu Ylonen.
6 * They, in turn, used stuff from BSD rcp.
8 * (SGT, 2001-09-10: Joris van Rantwijk assures me that although
9 * this file as originally submitted was inspired by, and
10 * _structurally_ based on, ssh-1.2.26's scp.c, there wasn't any
11 * actual code duplicated, so the above comment shouldn't give rise
12 * to licensing issues.)
22 #define PUTTY_DO_GLOBALS
30 static int verbose
= 0;
31 static int recursive
= 0;
32 static int preserve
= 0;
33 static int targetshouldbedirectory
= 0;
34 static int statistics
= 1;
35 static int prev_stats_len
= 0;
36 static int scp_unsafe_mode
= 0;
38 static int gui_mode
= 0;
39 static int try_scp
= 1;
40 static int try_sftp
= 1;
41 static int main_cmd_is_sftp
= 0;
42 static int fallback_cmd_is_sftp
= 0;
43 static int using_sftp
= 0;
46 static void *backhandle
;
49 static void source(char *src
);
50 static void rsource(char *src
);
51 static void sink(char *targ
, char *src
);
54 * The maximum amount of queued data we accept before we stop and
55 * wait for the server to process some.
57 #define MAX_SCP_BUFSIZE 16384
59 void ldisc_send(void *handle
, char *buf
, int len
, int interactive
)
62 * This is only here because of the calls to ldisc_send(NULL,
63 * 0) in ssh.c. Nothing in PSCP actually needs to use the ldisc
64 * as an ldisc. So if we get called with any real data, I want
70 static void tell_char(FILE * stream
, char c
)
75 gui_send_char(stream
== stderr
, c
);
78 static void tell_str(FILE * stream
, char *str
)
82 for (i
= 0; i
< strlen(str
); ++i
)
83 tell_char(stream
, str
[i
]);
86 static void tell_user(FILE * stream
, char *fmt
, ...)
91 str
= dupvprintf(fmt
, ap
);
93 str2
= dupcat(str
, "\n", NULL
);
95 tell_str(stream
, str2
);
100 * Print an error message and perform a fatal exit.
102 void fatalbox(char *fmt
, ...)
107 str
= dupvprintf(fmt
, ap
);
108 str2
= dupcat("Fatal: ", str
, "\n", NULL
);
111 tell_str(stderr
, str2
);
116 gui_send_errcount(list
, errs
);
120 void modalfatalbox(char *fmt
, ...)
125 str
= dupvprintf(fmt
, ap
);
126 str2
= dupcat("Fatal: ", str
, "\n", NULL
);
129 tell_str(stderr
, str2
);
134 gui_send_errcount(list
, errs
);
138 void connection_fatal(void *frontend
, char *fmt
, ...)
143 str
= dupvprintf(fmt
, ap
);
144 str2
= dupcat("Fatal: ", str
, "\n", NULL
);
147 tell_str(stderr
, str2
);
152 gui_send_errcount(list
, errs
);
158 * In pscp, all agent requests should be synchronous, so this is a
161 void agent_schedule_callback(void (*callback
)(void *, void *, int),
162 void *callback_ctx
, void *data
, int len
)
164 assert(!"We shouldn't be here");
168 * Receive a block of data from the SSH link. Block until all data
171 * To do this, we repeatedly call the SSH protocol module, with our
172 * own trap in from_backend() to catch the data that comes back. We
173 * do this until we have enough data.
176 static unsigned char *outptr
; /* where to put the data */
177 static unsigned outlen
; /* how much data required */
178 static unsigned char *pending
= NULL
; /* any spare data */
179 static unsigned pendlen
= 0, pendsize
= 0; /* length and phys. size of buffer */
180 int from_backend(void *frontend
, int is_stderr
, const char *data
, int datalen
)
182 unsigned char *p
= (unsigned char *) data
;
183 unsigned len
= (unsigned) datalen
;
186 * stderr data is just spouted to local stderr and otherwise
191 fwrite(data
, 1, len
, stderr
);
196 * If this is before the real session begins, just return.
201 if ((outlen
> 0) && (len
> 0)) {
202 unsigned used
= outlen
;
205 memcpy(outptr
, p
, used
);
213 if (pendsize
< pendlen
+ len
) {
214 pendsize
= pendlen
+ len
+ 4096;
215 pending
= sresize(pending
, pendsize
, unsigned char);
217 fatalbox("Out of memory");
219 memcpy(pending
+ pendlen
, p
, len
);
225 static int ssh_scp_recv(unsigned char *buf
, int len
)
231 * See if the pending-input block contains some of what we
235 unsigned pendused
= pendlen
;
236 if (pendused
> outlen
)
238 memcpy(outptr
, pending
, pendused
);
239 memmove(pending
, pending
+ pendused
, pendlen
- pendused
);
253 if (ssh_sftp_loop_iteration() < 0)
261 * Loop through the ssh connection and authentication process.
263 static void ssh_scp_init(void)
265 while (!back
->sendok(backhandle
)) {
266 if (ssh_sftp_loop_iteration() < 0)
270 /* Work out which backend we ended up using. */
271 if (!ssh_fallback_cmd(backhandle
))
272 using_sftp
= main_cmd_is_sftp
;
274 using_sftp
= fallback_cmd_is_sftp
;
278 tell_user(stderr
, "Using SFTP");
280 tell_user(stderr
, "Using SCP1");
285 * Print an error message and exit after closing the SSH link.
287 static void bump(char *fmt
, ...)
292 str
= dupvprintf(fmt
, ap
);
294 str2
= dupcat(str
, "\n", NULL
);
296 tell_str(stderr
, str2
);
300 if (back
!= NULL
&& back
->socket(backhandle
) != NULL
) {
302 back
->special(backhandle
, TS_EOF
);
303 ssh_scp_recv((unsigned char *) &ch
, 1);
307 gui_send_errcount(list
, errs
);
313 * Open an SSH connection to user@host and execute cmd.
315 static void do_cmd(char *host
, char *user
, char *cmd
)
321 if (host
== NULL
|| host
[0] == '\0')
322 bump("Empty host name");
324 /* Try to load settings for this host */
325 do_defaults(host
, &cfg
);
326 if (cfg
.host
[0] == '\0') {
327 /* No settings for this host; use defaults */
328 do_defaults(NULL
, &cfg
);
329 strncpy(cfg
.host
, host
, sizeof(cfg
.host
) - 1);
330 cfg
.host
[sizeof(cfg
.host
) - 1] = '\0';
334 * Force use of SSH. (If they got the protocol wrong we assume the
335 * port is useless too.)
337 if (cfg
.protocol
!= PROT_SSH
) {
338 cfg
.protocol
= PROT_SSH
;
343 * Enact command-line overrides.
345 cmdline_run_saved(&cfg
);
348 * Trim leading whitespace off the hostname if it's there.
351 int space
= strspn(cfg
.host
, " \t");
352 memmove(cfg
.host
, cfg
.host
+space
, 1+strlen(cfg
.host
)-space
);
355 /* See if host is of the form user@host */
356 if (cfg
.host
[0] != '\0') {
357 char *atsign
= strchr(cfg
.host
, '@');
358 /* Make sure we're not overflowing the user field */
360 if (atsign
- cfg
.host
< sizeof cfg
.username
) {
361 strncpy(cfg
.username
, cfg
.host
, atsign
- cfg
.host
);
362 cfg
.username
[atsign
- cfg
.host
] = '\0';
364 memmove(cfg
.host
, atsign
+ 1, 1 + strlen(atsign
+ 1));
369 * Trim a colon suffix off the hostname if it's there.
371 cfg
.host
[strcspn(cfg
.host
, ":")] = '\0';
374 * Remove any remaining whitespace from the hostname.
378 while (cfg
.host
[p2
] != '\0') {
379 if (cfg
.host
[p2
] != ' ' && cfg
.host
[p2
] != '\t') {
380 cfg
.host
[p1
] = cfg
.host
[p2
];
389 if (user
!= NULL
&& user
[0] != '\0') {
390 strncpy(cfg
.username
, user
, sizeof(cfg
.username
) - 1);
391 cfg
.username
[sizeof(cfg
.username
) - 1] = '\0';
392 } else if (cfg
.username
[0] == '\0') {
393 user
= get_username();
395 bump("Empty user name");
398 tell_user(stderr
, "Guessing user name: %s", user
);
399 strncpy(cfg
.username
, user
, sizeof(cfg
.username
) - 1);
400 cfg
.username
[sizeof(cfg
.username
) - 1] = '\0';
406 * Disable scary things which shouldn't be enabled for simple
407 * things like SCP and SFTP: agent forwarding, port forwarding,
412 cfg
.portfwd
[0] = cfg
.portfwd
[1] = '\0';
415 * Set up main and possibly fallback command depending on
416 * options specified by user.
417 * Attempt to start the SFTP subsystem as a first choice,
418 * falling back to the provided scp command if that fails.
420 cfg
.remote_cmd_ptr2
= NULL
;
422 /* First choice is SFTP subsystem. */
423 main_cmd_is_sftp
= 1;
424 strcpy(cfg
.remote_cmd
, "sftp");
425 cfg
.ssh_subsys
= TRUE
;
427 /* Fallback is to use the provided scp command. */
428 fallback_cmd_is_sftp
= 0;
429 cfg
.remote_cmd_ptr2
= cmd
;
430 cfg
.ssh_subsys2
= FALSE
;
432 /* Since we're not going to try SCP, we may as well try
433 * harder to find an SFTP server, since in the current
434 * implementation we have a spare slot. */
435 fallback_cmd_is_sftp
= 1;
436 /* see psftp.c for full explanation of this kludge */
437 cfg
.remote_cmd_ptr2
=
438 "test -x /usr/lib/sftp-server && exec /usr/lib/sftp-server\n"
439 "test -x /usr/local/lib/sftp-server && exec /usr/local/lib/sftp-server\n"
441 cfg
.ssh_subsys2
= FALSE
;
444 /* Don't try SFTP at all; just try the scp command. */
445 main_cmd_is_sftp
= 0;
446 cfg
.remote_cmd_ptr
= cmd
;
447 cfg
.ssh_subsys
= FALSE
;
453 err
= back
->init(NULL
, &backhandle
, &cfg
, cfg
.host
, cfg
.port
, &realhost
,0);
455 bump("ssh_init: %s", err
);
456 logctx
= log_init(NULL
, &cfg
);
457 back
->provide_logctx(backhandle
, logctx
);
458 console_provide_logctx(logctx
);
460 if (verbose
&& realhost
!= NULL
)
461 tell_user(stderr
, "Connected to %s\n", realhost
);
466 * Update statistic information about current file.
468 static void print_stats(char *name
, unsigned long size
, unsigned long done
,
469 time_t start
, time_t now
)
478 elap
= (unsigned long) difftime(now
, start
);
481 ratebs
= (float) done
/ elap
;
483 ratebs
= (float) done
;
488 eta
= (unsigned long) ((size
- done
) / ratebs
);
489 sprintf(etastr
, "%02ld:%02ld:%02ld",
490 eta
/ 3600, (eta
% 3600) / 60, eta
% 60);
492 pct
= (int) (100 * (done
* 1.0 / size
));
495 gui_update_stats(name
, size
, pct
, elap
, done
, eta
,
496 (unsigned long) ratebs
);
498 len
= printf("\r%-25.25s | %10ld kB | %5.1f kB/s | ETA: %8s | %3d%%",
499 name
, done
/ 1024, ratebs
/ 1024.0, etastr
, pct
);
500 if (len
< prev_stats_len
)
501 printf("%*s", prev_stats_len
- len
, "");
502 prev_stats_len
= len
;
512 * Find a colon in str and return a pointer to the colon.
513 * This is used to separate hostname from filename.
515 static char *colon(char *str
)
517 /* We ignore a leading colon, since the hostname cannot be
518 empty. We also ignore a colon as second character because
519 of filenames like f:myfile.txt. */
520 if (str
[0] == '\0' || str
[0] == ':' || str
[1] == ':')
522 while (*str
!= '\0' && *str
!= ':' && *str
!= '/' && *str
!= '\\')
531 * Return a pointer to the portion of str that comes after the last
532 * slash (or backslash or colon, if `local' is TRUE).
534 static char *stripslashes(char *str
, int local
)
539 p
= strchr(str
, ':');
543 p
= strrchr(str
, '/');
547 p
= strrchr(str
, '\\');
555 * Determine whether a string is entirely composed of dots.
557 static int is_dots(char *str
)
559 return str
[strspn(str
, ".")] == '\0';
563 * Wait for a response from the other side.
564 * Return 0 if ok, -1 if error.
566 static int response(void)
568 char ch
, resp
, rbuf
[2048];
571 if (ssh_scp_recv((unsigned char *) &resp
, 1) <= 0)
572 bump("Lost connection");
582 case 2: /* fatal error */
584 if (ssh_scp_recv((unsigned char *) &ch
, 1) <= 0)
585 bump("Protocol error: Lost connection");
587 } while (p
< sizeof(rbuf
) && ch
!= '\n');
590 tell_user(stderr
, "%s\n", rbuf
);
598 int sftp_recvdata(char *buf
, int len
)
600 return ssh_scp_recv((unsigned char *) buf
, len
);
602 int sftp_senddata(char *buf
, int len
)
604 back
->send(backhandle
, buf
, len
);
608 /* ----------------------------------------------------------------------
609 * sftp-based replacement for the hacky `pscp -ls'.
611 static int sftp_ls_compare(const void *av
, const void *bv
)
613 const struct fxp_name
*a
= (const struct fxp_name
*) av
;
614 const struct fxp_name
*b
= (const struct fxp_name
*) bv
;
615 return strcmp(a
->filename
, b
->filename
);
617 void scp_sftp_listdir(char *dirname
)
619 struct fxp_handle
*dirh
;
620 struct fxp_names
*names
;
621 struct fxp_name
*ournames
;
622 struct sftp_packet
*pktin
;
623 struct sftp_request
*req
, *rreq
;
624 int nnames
, namesize
;
628 tell_user(stderr
, "unable to initialise SFTP: %s", fxp_error());
633 printf("Listing directory %s\n", dirname
);
635 sftp_register(req
= fxp_opendir_send(dirname
));
636 rreq
= sftp_find_request(pktin
= sftp_recv());
638 dirh
= fxp_opendir_recv(pktin
, rreq
);
641 printf("Unable to open %s: %s\n", dirname
, fxp_error());
643 nnames
= namesize
= 0;
648 sftp_register(req
= fxp_readdir_send(dirh
));
649 rreq
= sftp_find_request(pktin
= sftp_recv());
651 names
= fxp_readdir_recv(pktin
, rreq
);
654 if (fxp_error_type() == SSH_FX_EOF
)
656 printf("Reading directory %s: %s\n", dirname
, fxp_error());
659 if (names
->nnames
== 0) {
660 fxp_free_names(names
);
664 if (nnames
+ names
->nnames
>= namesize
) {
665 namesize
+= names
->nnames
+ 128;
666 ournames
= sresize(ournames
, namesize
, struct fxp_name
);
669 for (i
= 0; i
< names
->nnames
; i
++)
670 ournames
[nnames
++] = names
->names
[i
];
672 names
->nnames
= 0; /* prevent free_names */
673 fxp_free_names(names
);
675 sftp_register(req
= fxp_close_send(dirh
));
676 rreq
= sftp_find_request(pktin
= sftp_recv());
678 fxp_close_recv(pktin
, rreq
);
681 * Now we have our filenames. Sort them by actual file
682 * name, and then output the longname parts.
684 qsort(ournames
, nnames
, sizeof(*ournames
), sftp_ls_compare
);
689 for (i
= 0; i
< nnames
; i
++)
690 printf("%s\n", ournames
[i
].longname
);
694 /* ----------------------------------------------------------------------
695 * Helper routines that contain the actual SCP protocol elements,
696 * implemented both as SCP1 and SFTP.
699 static struct scp_sftp_dirstack
{
700 struct scp_sftp_dirstack
*next
;
701 struct fxp_name
*names
;
702 int namepos
, namelen
;
705 int matched_something
; /* wildcard match set was non-empty */
706 } *scp_sftp_dirstack_head
;
707 static char *scp_sftp_remotepath
, *scp_sftp_currentname
;
708 static char *scp_sftp_wildcard
;
709 static int scp_sftp_targetisdir
, scp_sftp_donethistarget
;
710 static int scp_sftp_preserve
, scp_sftp_recursive
;
711 static unsigned long scp_sftp_mtime
, scp_sftp_atime
;
712 static int scp_has_times
;
713 static struct fxp_handle
*scp_sftp_filehandle
;
714 static struct fxp_xfer
*scp_sftp_xfer
;
715 static uint64 scp_sftp_fileoffset
;
717 void scp_source_setup(char *target
, int shouldbedir
)
721 * Find out whether the target filespec is in fact a
724 struct sftp_packet
*pktin
;
725 struct sftp_request
*req
, *rreq
;
726 struct fxp_attrs attrs
;
730 tell_user(stderr
, "unable to initialise SFTP: %s", fxp_error());
735 sftp_register(req
= fxp_stat_send(target
));
736 rreq
= sftp_find_request(pktin
= sftp_recv());
738 ret
= fxp_stat_recv(pktin
, rreq
, &attrs
);
740 if (!ret
|| !(attrs
.flags
& SSH_FILEXFER_ATTR_PERMISSIONS
))
741 scp_sftp_targetisdir
= 0;
743 scp_sftp_targetisdir
= (attrs
.permissions
& 0040000) != 0;
745 if (shouldbedir
&& !scp_sftp_targetisdir
) {
746 bump("pscp: remote filespec %s: not a directory\n", target
);
749 scp_sftp_remotepath
= dupstr(target
);
757 int scp_send_errmsg(char *str
)
760 /* do nothing; we never need to send our errors to the server */
762 back
->send(backhandle
, "\001", 1);/* scp protocol error prefix */
763 back
->send(backhandle
, str
, strlen(str
));
765 return 0; /* can't fail */
768 int scp_send_filetimes(unsigned long mtime
, unsigned long atime
)
771 scp_sftp_mtime
= mtime
;
772 scp_sftp_atime
= atime
;
777 sprintf(buf
, "T%lu 0 %lu 0\n", mtime
, atime
);
778 back
->send(backhandle
, buf
, strlen(buf
));
783 int scp_send_filename(char *name
, unsigned long size
, int modes
)
787 struct sftp_packet
*pktin
;
788 struct sftp_request
*req
, *rreq
;
790 if (scp_sftp_targetisdir
) {
791 fullname
= dupcat(scp_sftp_remotepath
, "/", name
, NULL
);
793 fullname
= dupstr(scp_sftp_remotepath
);
796 sftp_register(req
= fxp_open_send(fullname
, SSH_FXF_WRITE
|
797 SSH_FXF_CREAT
| SSH_FXF_TRUNC
));
798 rreq
= sftp_find_request(pktin
= sftp_recv());
800 scp_sftp_filehandle
= fxp_open_recv(pktin
, rreq
);
802 if (!scp_sftp_filehandle
) {
803 tell_user(stderr
, "pscp: unable to open %s: %s",
804 fullname
, fxp_error());
808 scp_sftp_fileoffset
= uint64_make(0, 0);
809 scp_sftp_xfer
= xfer_upload_init(scp_sftp_filehandle
,
810 scp_sftp_fileoffset
);
815 sprintf(buf
, "C%04o %lu ", modes
, size
);
816 back
->send(backhandle
, buf
, strlen(buf
));
817 back
->send(backhandle
, name
, strlen(name
));
818 back
->send(backhandle
, "\n", 1);
823 int scp_send_filedata(char *data
, int len
)
827 struct sftp_packet
*pktin
;
829 if (!scp_sftp_filehandle
) {
833 while (!xfer_upload_ready(scp_sftp_xfer
)) {
835 ret
= xfer_upload_gotpkt(scp_sftp_xfer
, pktin
);
837 tell_user(stderr
, "error while writing: %s\n", fxp_error());
843 xfer_upload_data(scp_sftp_xfer
, data
, len
);
845 scp_sftp_fileoffset
= uint64_add32(scp_sftp_fileoffset
, len
);
848 int bufsize
= back
->send(backhandle
, data
, len
);
851 * If the network transfer is backing up - that is, the
852 * remote site is not accepting data as fast as we can
853 * produce it - then we must loop on network events until
854 * we have space in the buffer again.
856 while (bufsize
> MAX_SCP_BUFSIZE
) {
857 if (ssh_sftp_loop_iteration() < 0)
859 bufsize
= back
->sendbuffer(backhandle
);
866 int scp_send_finish(void)
869 struct fxp_attrs attrs
;
870 struct sftp_packet
*pktin
;
871 struct sftp_request
*req
, *rreq
;
874 while (!xfer_done(scp_sftp_xfer
)) {
876 xfer_upload_gotpkt(scp_sftp_xfer
, pktin
);
878 xfer_cleanup(scp_sftp_xfer
);
880 if (!scp_sftp_filehandle
) {
884 attrs
.flags
= SSH_FILEXFER_ATTR_ACMODTIME
;
885 attrs
.atime
= scp_sftp_atime
;
886 attrs
.mtime
= scp_sftp_mtime
;
887 sftp_register(req
= fxp_fsetstat_send(scp_sftp_filehandle
, attrs
));
888 rreq
= sftp_find_request(pktin
= sftp_recv());
890 ret
= fxp_fsetstat_recv(pktin
, rreq
);
892 tell_user(stderr
, "unable to set file times: %s\n", fxp_error());
896 sftp_register(req
= fxp_close_send(scp_sftp_filehandle
));
897 rreq
= sftp_find_request(pktin
= sftp_recv());
899 fxp_close_recv(pktin
, rreq
);
903 back
->send(backhandle
, "", 1);
908 char *scp_save_remotepath(void)
911 return scp_sftp_remotepath
;
916 void scp_restore_remotepath(char *data
)
919 scp_sftp_remotepath
= data
;
922 int scp_send_dirname(char *name
, int modes
)
927 struct fxp_attrs attrs
;
928 struct sftp_packet
*pktin
;
929 struct sftp_request
*req
, *rreq
;
932 if (scp_sftp_targetisdir
) {
933 fullname
= dupcat(scp_sftp_remotepath
, "/", name
, NULL
);
935 fullname
= dupstr(scp_sftp_remotepath
);
939 * We don't worry about whether we managed to create the
940 * directory, because if it exists already it's OK just to
941 * use it. Instead, we will stat it afterwards, and if it
942 * exists and is a directory we will assume we were either
943 * successful or it didn't matter.
945 sftp_register(req
= fxp_mkdir_send(fullname
));
946 rreq
= sftp_find_request(pktin
= sftp_recv());
948 ret
= fxp_mkdir_recv(pktin
, rreq
);
953 err
= "server reported no error";
955 sftp_register(req
= fxp_stat_send(fullname
));
956 rreq
= sftp_find_request(pktin
= sftp_recv());
958 ret
= fxp_stat_recv(pktin
, rreq
, &attrs
);
960 if (!ret
|| !(attrs
.flags
& SSH_FILEXFER_ATTR_PERMISSIONS
) ||
961 !(attrs
.permissions
& 0040000)) {
962 tell_user(stderr
, "unable to create directory %s: %s",
968 scp_sftp_remotepath
= fullname
;
973 sprintf(buf
, "D%04o 0 ", modes
);
974 back
->send(backhandle
, buf
, strlen(buf
));
975 back
->send(backhandle
, name
, strlen(name
));
976 back
->send(backhandle
, "\n", 1);
981 int scp_send_enddir(void)
984 sfree(scp_sftp_remotepath
);
987 back
->send(backhandle
, "E\n", 2);
993 * Yes, I know; I have an scp_sink_setup _and_ an scp_sink_init.
994 * That's bad. The difference is that scp_sink_setup is called once
995 * right at the start, whereas scp_sink_init is called to
996 * initialise every level of recursion in the protocol.
998 int scp_sink_setup(char *source
, int preserve
, int recursive
)
1004 tell_user(stderr
, "unable to initialise SFTP: %s", fxp_error());
1009 * It's possible that the source string we've been given
1010 * contains a wildcard. If so, we must split the directory
1011 * away from the wildcard itself (throwing an error if any
1012 * wildcardness comes before the final slash) and arrange
1013 * things so that a dirstack entry will be set up.
1015 newsource
= snewn(1+strlen(source
), char);
1016 if (!wc_unescape(newsource
, source
)) {
1017 /* Yes, here we go; it's a wildcard. Bah. */
1018 char *dupsource
, *lastpart
, *dirpart
, *wildcard
;
1019 dupsource
= dupstr(source
);
1020 lastpart
= stripslashes(dupsource
, 0);
1021 wildcard
= dupstr(lastpart
);
1023 if (*dupsource
&& dupsource
[1]) {
1025 * The remains of dupsource are at least two
1026 * characters long, meaning the pathname wasn't
1027 * empty or just `/'. Hence, we remove the trailing
1030 lastpart
[-1] = '\0';
1031 } else if (!*dupsource
) {
1033 * The remains of dupsource are _empty_ - the whole
1034 * pathname was a wildcard. Hence we need to
1035 * replace it with ".".
1038 dupsource
= dupstr(".");
1042 * Now we have separated our string into dupsource (the
1043 * directory part) and wildcard. Both of these will
1044 * need freeing at some point. Next step is to remove
1045 * wildcard escapes from the directory part, throwing
1046 * an error if it contains a real wildcard.
1048 dirpart
= snewn(1+strlen(dupsource
), char);
1049 if (!wc_unescape(dirpart
, dupsource
)) {
1050 tell_user(stderr
, "%s: multiple-level wildcards unsupported",
1060 * Now we have dirpart (unescaped, ie a valid remote
1061 * path), and wildcard (a wildcard). This will be
1062 * sufficient to arrange a dirstack entry.
1064 scp_sftp_remotepath
= dirpart
;
1065 scp_sftp_wildcard
= wildcard
;
1068 scp_sftp_remotepath
= newsource
;
1069 scp_sftp_wildcard
= NULL
;
1071 scp_sftp_preserve
= preserve
;
1072 scp_sftp_recursive
= recursive
;
1073 scp_sftp_donethistarget
= 0;
1074 scp_sftp_dirstack_head
= NULL
;
1079 int scp_sink_init(void)
1082 back
->send(backhandle
, "", 1);
1087 #define SCP_SINK_FILE 1
1088 #define SCP_SINK_DIR 2
1089 #define SCP_SINK_ENDDIR 3
1090 #define SCP_SINK_RETRY 4 /* not an action; just try again */
1091 struct scp_sink_action
{
1092 int action
; /* FILE, DIR, ENDDIR */
1093 char *buf
; /* will need freeing after use */
1094 char *name
; /* filename or dirname (not ENDDIR) */
1095 int mode
; /* access mode (not ENDDIR) */
1096 unsigned long size
; /* file size (not ENDDIR) */
1097 int settime
; /* 1 if atime and mtime are filled */
1098 unsigned long atime
, mtime
; /* access times for the file */
1101 int scp_get_sink_action(struct scp_sink_action
*act
)
1105 int must_free_fname
;
1106 struct fxp_attrs attrs
;
1107 struct sftp_packet
*pktin
;
1108 struct sftp_request
*req
, *rreq
;
1111 if (!scp_sftp_dirstack_head
) {
1112 if (!scp_sftp_donethistarget
) {
1114 * Simple case: we are only dealing with one file.
1116 fname
= scp_sftp_remotepath
;
1117 must_free_fname
= 0;
1118 scp_sftp_donethistarget
= 1;
1121 * Even simpler case: one file _which we've done_.
1122 * Return 1 (finished).
1128 * We're now in the middle of stepping through a list
1129 * of names returned from fxp_readdir(); so let's carry
1132 struct scp_sftp_dirstack
*head
= scp_sftp_dirstack_head
;
1133 while (head
->namepos
< head
->namelen
&&
1134 (is_dots(head
->names
[head
->namepos
].filename
) ||
1136 !wc_match(head
->wildcard
,
1137 head
->names
[head
->namepos
].filename
))))
1138 head
->namepos
++; /* skip . and .. */
1139 if (head
->namepos
< head
->namelen
) {
1140 head
->matched_something
= 1;
1141 fname
= dupcat(head
->dirpath
, "/",
1142 head
->names
[head
->namepos
++].filename
,
1144 must_free_fname
= 1;
1147 * We've come to the end of the list; pop it off
1148 * the stack and return an ENDDIR action (or RETRY
1149 * if this was a wildcard match).
1151 if (head
->wildcard
) {
1152 act
->action
= SCP_SINK_RETRY
;
1153 if (!head
->matched_something
) {
1154 tell_user(stderr
, "pscp: wildcard '%s' matched "
1155 "no files", head
->wildcard
);
1158 sfree(head
->wildcard
);
1161 act
->action
= SCP_SINK_ENDDIR
;
1164 sfree(head
->dirpath
);
1166 scp_sftp_dirstack_head
= head
->next
;
1174 * Now we have a filename. Stat it, and see if it's a file
1177 sftp_register(req
= fxp_stat_send(fname
));
1178 rreq
= sftp_find_request(pktin
= sftp_recv());
1179 assert(rreq
== req
);
1180 ret
= fxp_stat_recv(pktin
, rreq
, &attrs
);
1182 if (!ret
|| !(attrs
.flags
& SSH_FILEXFER_ATTR_PERMISSIONS
)) {
1183 tell_user(stderr
, "unable to identify %s: %s", fname
,
1184 ret ?
"file type not supplied" : fxp_error());
1189 if (attrs
.permissions
& 0040000) {
1190 struct scp_sftp_dirstack
*newitem
;
1191 struct fxp_handle
*dirhandle
;
1192 int nnames
, namesize
;
1193 struct fxp_name
*ournames
;
1194 struct fxp_names
*names
;
1197 * It's a directory. If we're not in recursive mode,
1198 * this merits a complaint (which is fatal if the name
1199 * was specified directly, but not if it was matched by
1202 * We skip this complaint completely if
1203 * scp_sftp_wildcard is set, because that's an
1204 * indication that we're not actually supposed to
1205 * _recursively_ transfer the dir, just scan it for
1206 * things matching the wildcard.
1208 if (!scp_sftp_recursive
&& !scp_sftp_wildcard
) {
1209 tell_user(stderr
, "pscp: %s: is a directory", fname
);
1211 if (must_free_fname
) sfree(fname
);
1212 if (scp_sftp_dirstack_head
) {
1213 act
->action
= SCP_SINK_RETRY
;
1221 * Otherwise, the fun begins. We must fxp_opendir() the
1222 * directory, slurp the filenames into memory, return
1223 * SCP_SINK_DIR (unless this is a wildcard match), and
1224 * set targetisdir. The next time we're called, we will
1225 * run through the list of filenames one by one,
1226 * matching them against a wildcard if present.
1228 * If targetisdir is _already_ set (meaning we're
1229 * already in the middle of going through another such
1230 * list), we must push the other (target,namelist) pair
1233 sftp_register(req
= fxp_opendir_send(fname
));
1234 rreq
= sftp_find_request(pktin
= sftp_recv());
1235 assert(rreq
== req
);
1236 dirhandle
= fxp_opendir_recv(pktin
, rreq
);
1239 tell_user(stderr
, "scp: unable to open directory %s: %s",
1240 fname
, fxp_error());
1241 if (must_free_fname
) sfree(fname
);
1245 nnames
= namesize
= 0;
1250 sftp_register(req
= fxp_readdir_send(dirhandle
));
1251 rreq
= sftp_find_request(pktin
= sftp_recv());
1252 assert(rreq
== req
);
1253 names
= fxp_readdir_recv(pktin
, rreq
);
1255 if (names
== NULL
) {
1256 if (fxp_error_type() == SSH_FX_EOF
)
1258 tell_user(stderr
, "scp: reading directory %s: %s\n",
1259 fname
, fxp_error());
1260 if (must_free_fname
) sfree(fname
);
1265 if (names
->nnames
== 0) {
1266 fxp_free_names(names
);
1269 if (nnames
+ names
->nnames
>= namesize
) {
1270 namesize
+= names
->nnames
+ 128;
1271 ournames
= sresize(ournames
, namesize
, struct fxp_name
);
1273 for (i
= 0; i
< names
->nnames
; i
++)
1274 ournames
[nnames
++] = names
->names
[i
];
1275 names
->nnames
= 0; /* prevent free_names */
1276 fxp_free_names(names
);
1278 sftp_register(req
= fxp_close_send(dirhandle
));
1279 rreq
= sftp_find_request(pktin
= sftp_recv());
1280 assert(rreq
== req
);
1281 fxp_close_recv(pktin
, rreq
);
1283 newitem
= snew(struct scp_sftp_dirstack
);
1284 newitem
->next
= scp_sftp_dirstack_head
;
1285 newitem
->names
= ournames
;
1286 newitem
->namepos
= 0;
1287 newitem
->namelen
= nnames
;
1288 if (must_free_fname
)
1289 newitem
->dirpath
= fname
;
1291 newitem
->dirpath
= dupstr(fname
);
1292 if (scp_sftp_wildcard
) {
1293 newitem
->wildcard
= scp_sftp_wildcard
;
1294 newitem
->matched_something
= 0;
1295 scp_sftp_wildcard
= NULL
;
1297 newitem
->wildcard
= NULL
;
1299 scp_sftp_dirstack_head
= newitem
;
1301 if (newitem
->wildcard
) {
1302 act
->action
= SCP_SINK_RETRY
;
1304 act
->action
= SCP_SINK_DIR
;
1305 act
->buf
= dupstr(stripslashes(fname
, 0));
1306 act
->name
= act
->buf
;
1307 act
->size
= 0; /* duhh, it's a directory */
1308 act
->mode
= 07777 & attrs
.permissions
;
1309 if (scp_sftp_preserve
&&
1310 (attrs
.flags
& SSH_FILEXFER_ATTR_ACMODTIME
)) {
1311 act
->atime
= attrs
.atime
;
1312 act
->mtime
= attrs
.mtime
;
1321 * It's a file. Return SCP_SINK_FILE.
1323 act
->action
= SCP_SINK_FILE
;
1324 act
->buf
= dupstr(stripslashes(fname
, 0));
1325 act
->name
= act
->buf
;
1326 if (attrs
.flags
& SSH_FILEXFER_ATTR_SIZE
) {
1327 if (uint64_compare(attrs
.size
,
1328 uint64_make(0, ULONG_MAX
)) > 0) {
1329 act
->size
= ULONG_MAX
; /* *boggle* */
1331 act
->size
= attrs
.size
.lo
;
1333 act
->size
= ULONG_MAX
; /* no idea */
1334 act
->mode
= 07777 & attrs
.permissions
;
1335 if (scp_sftp_preserve
&&
1336 (attrs
.flags
& SSH_FILEXFER_ATTR_ACMODTIME
)) {
1337 act
->atime
= attrs
.atime
;
1338 act
->mtime
= attrs
.mtime
;
1342 if (must_free_fname
)
1343 scp_sftp_currentname
= fname
;
1345 scp_sftp_currentname
= dupstr(fname
);
1360 if (ssh_scp_recv((unsigned char *) &ch
, 1) <= 0)
1363 bump("Protocol error: Unexpected newline");
1367 if (ssh_scp_recv((unsigned char *) &ch
, 1) <= 0)
1368 bump("Lost connection");
1371 act
->buf
= sresize(act
->buf
, bufsize
, char);
1374 } while (ch
!= '\n');
1375 act
->buf
[i
- 1] = '\0';
1377 case '\01': /* error */
1378 tell_user(stderr
, "%s\n", act
->buf
);
1380 continue; /* go round again */
1381 case '\02': /* fatal error */
1382 bump("%s", act
->buf
);
1384 back
->send(backhandle
, "", 1);
1385 act
->action
= SCP_SINK_ENDDIR
;
1388 if (sscanf(act
->buf
, "%ld %*d %ld %*d",
1389 &act
->mtime
, &act
->atime
) == 2) {
1391 back
->send(backhandle
, "", 1);
1392 continue; /* go round again */
1394 bump("Protocol error: Illegal time format");
1397 act
->action
= (action
== 'C' ? SCP_SINK_FILE
: SCP_SINK_DIR
);
1400 bump("Protocol error: Expected control record");
1403 * We will go round this loop only once, unless we hit
1410 * If we get here, we must have seen SCP_SINK_FILE or
1413 if (sscanf(act
->buf
, "%o %lu %n", &act
->mode
, &act
->size
, &i
) != 2)
1414 bump("Protocol error: Illegal file descriptor format");
1415 act
->name
= act
->buf
+ i
;
1420 int scp_accept_filexfer(void)
1423 struct sftp_packet
*pktin
;
1424 struct sftp_request
*req
, *rreq
;
1426 sftp_register(req
= fxp_open_send(scp_sftp_currentname
, SSH_FXF_READ
));
1427 rreq
= sftp_find_request(pktin
= sftp_recv());
1428 assert(rreq
== req
);
1429 scp_sftp_filehandle
= fxp_open_recv(pktin
, rreq
);
1431 if (!scp_sftp_filehandle
) {
1432 tell_user(stderr
, "pscp: unable to open %s: %s",
1433 scp_sftp_currentname
, fxp_error());
1437 scp_sftp_fileoffset
= uint64_make(0, 0);
1438 scp_sftp_xfer
= xfer_download_init(scp_sftp_filehandle
,
1439 scp_sftp_fileoffset
);
1440 sfree(scp_sftp_currentname
);
1443 back
->send(backhandle
, "", 1);
1444 return 0; /* can't fail */
1448 int scp_recv_filedata(char *data
, int len
)
1451 struct sftp_packet
*pktin
;
1455 xfer_download_queue(scp_sftp_xfer
);
1456 pktin
= sftp_recv();
1457 ret
= xfer_download_gotpkt(scp_sftp_xfer
, pktin
);
1460 tell_user(stderr
, "pscp: error while reading: %s", fxp_error());
1465 if (xfer_download_data(scp_sftp_xfer
, &vbuf
, &actuallen
)) {
1467 * This assertion relies on the fact that the natural
1468 * block size used in the xfer manager is at most that
1469 * used in this module. I don't like crossing layers in
1470 * this way, but it'll do for now.
1472 assert(actuallen
<= len
);
1473 memcpy(data
, vbuf
, actuallen
);
1478 scp_sftp_fileoffset
= uint64_add32(scp_sftp_fileoffset
, actuallen
);
1482 return ssh_scp_recv((unsigned char *) data
, len
);
1486 int scp_finish_filerecv(void)
1489 struct sftp_packet
*pktin
;
1490 struct sftp_request
*req
, *rreq
;
1493 * Ensure that xfer_done() will work correctly, so we can
1494 * clean up any outstanding requests from the file
1497 xfer_set_error(scp_sftp_xfer
);
1498 while (!xfer_done(scp_sftp_xfer
)) {
1502 pktin
= sftp_recv();
1503 xfer_download_gotpkt(scp_sftp_xfer
, pktin
);
1504 if (xfer_download_data(scp_sftp_xfer
, &vbuf
, &len
))
1507 xfer_cleanup(scp_sftp_xfer
);
1509 sftp_register(req
= fxp_close_send(scp_sftp_filehandle
));
1510 rreq
= sftp_find_request(pktin
= sftp_recv());
1511 assert(rreq
== req
);
1512 fxp_close_recv(pktin
, rreq
);
1515 back
->send(backhandle
, "", 1);
1520 /* ----------------------------------------------------------------------
1521 * Send an error message to the other side and to the screen.
1522 * Increment error counter.
1524 static void run_err(const char *fmt
, ...)
1530 str
= dupvprintf(fmt
, ap
);
1531 str2
= dupcat("scp: ", str
, "\n", NULL
);
1533 scp_send_errmsg(str2
);
1534 tell_user(stderr
, "%s", str2
);
1540 * Execute the source part of the SCP protocol.
1542 static void source(char *src
)
1545 unsigned long mtime
, atime
;
1550 unsigned long stat_bytes
;
1551 time_t stat_starttime
, stat_lasttime
;
1553 attr
= file_type(src
);
1554 if (attr
== FILE_TYPE_NONEXISTENT
||
1555 attr
== FILE_TYPE_WEIRD
) {
1556 run_err("%s: %s file or directory", src
,
1557 (attr
== FILE_TYPE_WEIRD ?
"Not a" : "No such"));
1561 if (attr
== FILE_TYPE_DIRECTORY
) {
1564 * Avoid . and .. directories.
1567 p
= strrchr(src
, '/');
1569 p
= strrchr(src
, '\\');
1574 if (!strcmp(p
, ".") || !strcmp(p
, ".."))
1575 /* skip . and .. */ ;
1579 run_err("%s: not a regular file", src
);
1584 if ((last
= strrchr(src
, '/')) == NULL
)
1588 if (strrchr(last
, '\\') != NULL
)
1589 last
= strrchr(last
, '\\') + 1;
1590 if (last
== src
&& strchr(src
, ':') != NULL
)
1591 last
= strchr(src
, ':') + 1;
1593 f
= open_existing_file(src
, &size
, &mtime
, &atime
);
1595 run_err("%s: Cannot open file", src
);
1599 if (scp_send_filetimes(mtime
, atime
))
1604 tell_user(stderr
, "Sending file %s, size=%lu", last
, size
);
1605 if (scp_send_filename(last
, size
, 0644))
1609 stat_starttime
= time(NULL
);
1612 for (i
= 0; i
< size
; i
+= 4096) {
1613 char transbuf
[4096];
1618 if ((j
= read_from_file(f
, transbuf
, k
)) != k
) {
1621 bump("%s: Read error", src
);
1623 if (scp_send_filedata(transbuf
, k
))
1624 bump("%s: Network error occurred", src
);
1628 if (time(NULL
) != stat_lasttime
|| i
+ k
== size
) {
1629 stat_lasttime
= time(NULL
);
1630 print_stats(last
, size
, stat_bytes
,
1631 stat_starttime
, stat_lasttime
);
1638 (void) scp_send_finish();
1642 * Recursively send the contents of a directory.
1644 static void rsource(char *src
)
1650 if ((last
= strrchr(src
, '/')) == NULL
)
1654 if (strrchr(last
, '\\') != NULL
)
1655 last
= strrchr(last
, '\\') + 1;
1656 if (last
== src
&& strchr(src
, ':') != NULL
)
1657 last
= strchr(src
, ':') + 1;
1659 /* maybe send filetime */
1661 save_target
= scp_save_remotepath();
1664 tell_user(stderr
, "Entering directory: %s", last
);
1665 if (scp_send_dirname(last
, 0755))
1668 dir
= open_directory(src
);
1671 while ((filename
= read_filename(dir
)) != NULL
) {
1672 char *foundfile
= dupcat(src
, "/", filename
, NULL
);
1678 close_directory(dir
);
1680 (void) scp_send_enddir();
1682 scp_restore_remotepath(save_target
);
1686 * Execute the sink part of the SCP protocol.
1688 static void sink(char *targ
, char *src
)
1695 unsigned long received
;
1697 unsigned long stat_bytes
;
1698 time_t stat_starttime
, stat_lasttime
;
1701 attr
= file_type(targ
);
1702 if (attr
== FILE_TYPE_DIRECTORY
)
1705 if (targetshouldbedirectory
&& !targisdir
)
1706 bump("%s: Not a directory", targ
);
1710 struct scp_sink_action act
;
1711 if (scp_get_sink_action(&act
))
1714 if (act
.action
== SCP_SINK_ENDDIR
)
1717 if (act
.action
== SCP_SINK_RETRY
)
1722 * Prevent the remote side from maliciously writing to
1723 * files outside the target area by sending a filename
1724 * containing `../'. In fact, it shouldn't be sending
1725 * filenames with any slashes or colons in at all; so
1726 * we'll find the last slash, backslash or colon in the
1727 * filename and use only the part after that. (And
1730 * In addition, we also ensure here that if we're
1731 * copying a single file and the target is a directory
1732 * (common usage: `pscp host:filename .') the remote
1733 * can't send us a _different_ file name. We can
1734 * distinguish this case because `src' will be non-NULL
1735 * and the last component of that will fail to match
1736 * (the last component of) the name sent.
1738 * Well, not always; if `src' is a wildcard, we do
1739 * expect to get back filenames that don't correspond
1740 * exactly to it. Ideally in this case, we would like
1741 * to ensure that the returned filename actually
1742 * matches the wildcard pattern - but one of SCP's
1743 * protocol infelicities is that wildcard matching is
1744 * done at the server end _by the server's rules_ and
1745 * so in general this is infeasible. Hence, we only
1746 * accept filenames that don't correspond to `src' if
1747 * unsafe mode is enabled or we are using SFTP (which
1748 * resolves remote wildcards on the client side and can
1751 char *striptarget
, *stripsrc
;
1753 striptarget
= stripslashes(act
.name
, 1);
1754 if (striptarget
!= act
.name
) {
1755 tell_user(stderr
, "warning: remote host sent a compound"
1756 " pathname '%s'", act
.name
);
1757 tell_user(stderr
, " renaming local file to '%s'",
1762 * Also check to see if the target filename is '.' or
1763 * '..', or indeed '...' and so on because Windows
1764 * appears to interpret those like '..'.
1766 if (is_dots(striptarget
)) {
1767 bump("security violation: remote host attempted to write to"
1768 " a '.' or '..' path!");
1772 stripsrc
= stripslashes(src
, 1);
1773 if (strcmp(striptarget
, stripsrc
) &&
1774 !using_sftp
&& !scp_unsafe_mode
) {
1775 tell_user(stderr
, "warning: remote host tried to write "
1776 "to a file called '%s'", striptarget
);
1777 tell_user(stderr
, " when we requested a file "
1778 "called '%s'.", stripsrc
);
1779 tell_user(stderr
, " If this is a wildcard, "
1780 "consider upgrading to SSH 2 or using");
1781 tell_user(stderr
, " the '-unsafe' option. Renaming"
1782 " of this file has been disallowed.");
1783 /* Override the name the server provided with our own. */
1784 striptarget
= stripsrc
;
1788 if (targ
[0] != '\0')
1789 destfname
= dir_file_cat(targ
, striptarget
);
1791 destfname
= dupstr(striptarget
);
1794 * In this branch of the if, the target area is a
1795 * single file with an explicitly specified name in any
1796 * case, so there's no danger.
1798 destfname
= dupstr(targ
);
1800 attr
= file_type(destfname
);
1801 exists
= (attr
!= FILE_TYPE_NONEXISTENT
);
1803 if (act
.action
== SCP_SINK_DIR
) {
1804 if (exists
&& attr
!= FILE_TYPE_DIRECTORY
) {
1805 run_err("%s: Not a directory", destfname
);
1809 if (!create_directory(destfname
)) {
1810 run_err("%s: Cannot create directory", destfname
);
1814 sink(destfname
, NULL
);
1815 /* can we set the timestamp for directories ? */
1819 f
= open_new_file(destfname
);
1821 run_err("%s: Cannot create file", destfname
);
1825 if (scp_accept_filexfer())
1829 stat_starttime
= time(NULL
);
1831 stat_name
= stripslashes(destfname
, 1);
1834 while (received
< act
.size
) {
1835 char transbuf
[4096];
1836 unsigned long blksize
;
1839 if (blksize
> (act
.size
- received
))
1840 blksize
= act
.size
- received
;
1841 read
= scp_recv_filedata(transbuf
, (int)blksize
);
1843 bump("Lost connection");
1846 if (write_to_file(f
, transbuf
, read
) != (int)read
) {
1848 /* FIXME: in sftp we can actually abort the transfer */
1850 printf("\r%-25.25s | %50s\n",
1852 "Write error.. waiting for end of file");
1857 if (time(NULL
) > stat_lasttime
||
1858 received
+ read
== act
.size
) {
1859 stat_lasttime
= time(NULL
);
1860 print_stats(stat_name
, act
.size
, stat_bytes
,
1861 stat_starttime
, stat_lasttime
);
1867 set_file_times(f
, act
.mtime
, act
.atime
);
1872 run_err("%s: Write error", destfname
);
1875 (void) scp_finish_filerecv();
1882 * We will copy local files to a remote server.
1884 static void toremote(int argc
, char *argv
[])
1886 char *src
, *targ
, *host
, *user
;
1890 targ
= argv
[argc
- 1];
1892 /* Separate host from filename */
1896 bump("targ == NULL in toremote()");
1900 /* Substitute "." for emtpy target */
1902 /* Separate host and username */
1904 host
= strrchr(host
, '@');
1915 if (colon(argv
[0]) != NULL
)
1916 bump("%s: Remote to remote not supported", argv
[0]);
1918 wc_type
= test_wildcard(argv
[0], 1);
1919 if (wc_type
== WCTYPE_NONEXISTENT
)
1920 bump("%s: No such file or directory\n", argv
[0]);
1921 else if (wc_type
== WCTYPE_WILDCARD
)
1922 targetshouldbedirectory
= 1;
1925 cmd
= dupprintf("scp%s%s%s%s -t %s",
1926 verbose ?
" -v" : "",
1927 recursive ?
" -r" : "",
1928 preserve ?
" -p" : "",
1929 targetshouldbedirectory ?
" -d" : "", targ
);
1930 do_cmd(host
, user
, cmd
);
1933 scp_source_setup(targ
, targetshouldbedirectory
);
1935 for (i
= 0; i
< argc
- 1; i
++) {
1937 if (colon(src
) != NULL
) {
1938 tell_user(stderr
, "%s: Remote to remote not supported\n", src
);
1943 wc_type
= test_wildcard(src
, 1);
1944 if (wc_type
== WCTYPE_NONEXISTENT
) {
1945 run_err("%s: No such file or directory", src
);
1947 } else if (wc_type
== WCTYPE_FILENAME
) {
1951 WildcardMatcher
*wc
;
1954 wc
= begin_wildcard_matching(src
);
1956 run_err("%s: No such file or directory", src
);
1960 while ((filename
= wildcard_get_filename(wc
)) != NULL
) {
1965 finish_wildcard_matching(wc
);
1971 * We will copy files from a remote server to the local machine.
1973 static void tolocal(int argc
, char *argv
[])
1975 char *src
, *targ
, *host
, *user
;
1979 bump("More than one remote source not supported");
1984 /* Separate host from filename */
1988 bump("Local to local copy not supported");
1992 /* Substitute "." for empty filename */
1994 /* Separate username and hostname */
1996 host
= strrchr(host
, '@');
2006 cmd
= dupprintf("scp%s%s%s%s -f %s",
2007 verbose ?
" -v" : "",
2008 recursive ?
" -r" : "",
2009 preserve ?
" -p" : "",
2010 targetshouldbedirectory ?
" -d" : "", src
);
2011 do_cmd(host
, user
, cmd
);
2014 if (scp_sink_setup(src
, preserve
, recursive
))
2021 * We will issue a list command to get a remote directory.
2023 static void get_dir_list(int argc
, char *argv
[])
2025 char *src
, *host
, *user
;
2031 /* Separate host from filename */
2035 bump("Local to local copy not supported");
2039 /* Substitute "." for empty filename */
2041 /* Separate username and hostname */
2043 host
= strrchr(host
, '@');
2053 cmd
= snewn(4 * strlen(src
) + 100, char);
2054 strcpy(cmd
, "ls -la '");
2055 p
= cmd
+ strlen(cmd
);
2056 for (q
= src
; *q
; q
++) {
2069 do_cmd(host
, user
, cmd
);
2073 scp_sftp_listdir(src
);
2075 while (ssh_scp_recv((unsigned char *) &c
, 1) > 0)
2076 tell_char(stdout
, c
);
2081 * Short description of parameters.
2083 static void usage(void)
2085 printf("PuTTY Secure Copy client\n");
2086 printf("%s\n", ver
);
2087 printf("Usage: pscp [options] [user@]host:source target\n");
2089 (" pscp [options] source [source...] [user@]host:target\n");
2090 printf(" pscp [options] -ls [user@]host:filespec\n");
2091 printf("Options:\n");
2092 printf(" -p preserve file attributes\n");
2093 printf(" -q quiet, don't show statistics\n");
2094 printf(" -r copy directories recursively\n");
2095 printf(" -v show verbose messages\n");
2096 printf(" -load sessname Load settings from saved session\n");
2097 printf(" -P port connect to specified port\n");
2098 printf(" -l user connect with specified username\n");
2099 printf(" -pw passw login with specified password\n");
2100 printf(" -1 -2 force use of particular SSH protocol version\n");
2101 printf(" -C enable compression\n");
2102 printf(" -i key private key file for authentication\n");
2103 printf(" -batch disable all interactive prompts\n");
2104 printf(" -unsafe allow server-side wildcards (DANGEROUS)\n");
2105 printf(" -V print version information\n");
2106 printf(" -sftp force use of SFTP protocol\n");
2107 printf(" -scp force use of SCP protocol\n");
2110 * -gui is an internal option, used by GUI front ends to get
2111 * pscp to pass progress reports back to them. It's not an
2112 * ordinary user-accessible option, so it shouldn't be part of
2113 * the command-line help. The only people who need to know
2114 * about it are programmers, and they can read the source.
2117 (" -gui hWnd GUI mode with the windows handle for receiving messages\n");
2124 printf("pscp: %s\n", ver
);
2128 void cmdline_error(char *p
, ...)
2131 fprintf(stderr
, "pscp: ");
2133 vfprintf(stderr
, p
, ap
);
2135 fprintf(stderr
, "\n try typing just \"pscp\" for help\n");
2140 * Main program. (Called `psftp_main' because it gets called from
2141 * *sftp.c; bit silly, I know, but it had to be called _something_.)
2143 int psftp_main(int argc
, char *argv
[])
2147 default_protocol
= PROT_TELNET
;
2150 #ifdef FLAG_SYNCAGENT
2154 cmdline_tooltype
= TOOLTYPE_FILETRANSFER
;
2155 ssh_get_line
= &console_get_line
;
2158 for (i
= 1; i
< argc
; i
++) {
2160 if (argv
[i
][0] != '-')
2162 ret
= cmdline_process_param(argv
[i
], i
+1<argc?argv
[i
+1]:NULL
, 1, &cfg
);
2164 cmdline_error("option \"%s\" requires an argument", argv
[i
]);
2165 } else if (ret
== 2) {
2166 i
++; /* skip next argument */
2167 } else if (ret
== 1) {
2168 /* We have our own verbosity in addition to `flags'. */
2169 if (flags
& FLAG_VERBOSE
)
2171 } else if (strcmp(argv
[i
], "-r") == 0) {
2173 } else if (strcmp(argv
[i
], "-p") == 0) {
2175 } else if (strcmp(argv
[i
], "-q") == 0) {
2177 } else if (strcmp(argv
[i
], "-h") == 0 || strcmp(argv
[i
], "-?") == 0) {
2179 } else if (strcmp(argv
[i
], "-V") == 0) {
2181 } else if (strcmp(argv
[i
], "-gui") == 0 && i
+ 1 < argc
) {
2182 gui_enable(argv
[++i
]);
2184 console_batch_mode
= TRUE
;
2185 } else if (strcmp(argv
[i
], "-ls") == 0) {
2187 } else if (strcmp(argv
[i
], "-batch") == 0) {
2188 console_batch_mode
= 1;
2189 } else if (strcmp(argv
[i
], "-unsafe") == 0) {
2190 scp_unsafe_mode
= 1;
2191 } else if (strcmp(argv
[i
], "-sftp") == 0) {
2192 try_scp
= 0; try_sftp
= 1;
2193 } else if (strcmp(argv
[i
], "-scp") == 0) {
2194 try_scp
= 1; try_sftp
= 0;
2195 } else if (strcmp(argv
[i
], "--") == 0) {
2199 cmdline_error("unknown option \"%s\"", argv
[i
]);
2209 get_dir_list(argc
, argv
);
2216 targetshouldbedirectory
= 1;
2218 if (colon(argv
[argc
- 1]) != NULL
)
2219 toremote(argc
, argv
);
2221 tolocal(argc
, argv
);
2224 if (back
!= NULL
&& back
->socket(backhandle
) != NULL
) {
2226 back
->special(backhandle
, TS_EOF
);
2227 ssh_scp_recv((unsigned char *) &ch
, 1);
2232 gui_send_errcount(list
, errs
);
2235 console_provide_logctx(NULL
);
2236 back
->free(backhandle
);
2240 return (errs
== 0 ?
0 : 1);